Dr Hamid Ahmadi


Dr Hamid Ahmadi
NameDr Hamid Ahmadi
Email Addresshamid.ahmadi@unisq.edu.au
Job TitleSenior Lecturer (Civil Composites Simulation)
QualificationsBSc Tabriz, MSc Tabriz, PhD Tabriz
DepartmentCentre for Future Materials (Research)
ORCIDhttps://orcid.org/0000-0002-6192-6275
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Biography

With a PhD in Civil Engineering, specialized in Marine Structures, Dr Hamid Ahmadi has established himself as a dedicated and accomplished educator and researcher in the field. Graduating as the top-ranked candidate in his cohort speaks to his commitment to academic excellence. Currently, he serves as a Senior Lecturer and an Advance Queensland Industry Research Fellow at the Centre for Future Materials, University of Southern Queensland. Before joining UniSQ, he was a Research Fellow at Griffith University. His international experience includes serving as an Associate Professor in Civil Engineering at University of Tabriz, before relocating to Australia in 2022 on a Global Talent visa.

His academic journey spans over a decade, during which he has convened and lectured numerous Civil/Structural/Marine Engineering courses at various levels, from undergraduate to PhD. His SET scores have an average of 4.80/5 over the past five years, underscoring the effectiveness of his teaching philosophy. He has been nominated for the ‘Lecturer of the Year’ award multiple times, including two consecutive wins in 2015 and 2016.

His contributions extend beyond the classroom, as evidenced by his extensive publication record. He has authored 108 journal papers (including 47 in Q1 journals) and presented 63 papers at national and international conferences. His H-index is 29 and his i10-index is 48 with over 1900 citations [Feb 2024]. He has peer reviewed over 180 papers across more than 40 scientific periodicals. He has supervised 9 PhD and 54 Master’s students, in addition to mentoring a postdoctoral Research Fellow. In 2020 and 2022, he was ranked among the top 2% of highly-cited scientists globally by Stanford University.

Over the past five years, he has actively cultivated industry-university collaborations and secured external research funding within the fields of Civil/Structural/Marine Engineering. Notably, in 2023, he has successfully obtained an Advance Queensland Industry Research Fellowship (with a total value of $620,000) as the Chief Investigator which reflects his ability to bridge the gap between academia and industry.

Beyond his technical qualifications, he has a history of leadership and service within academia which has equipped him with valuable insights into quality improvement programs and institutional governance.

Expertise

- Structural Mechanics

- Finite Element Modelling and Analysis of Complex Infrastructures

- Analysis and Design of Tubular Joints

- Design of Offshore and Coastal Structures

- Constructional Steel Design

- Fatigue and Fracture Mechanics

- Structural Reliability Analysis and Probabilistic Design

- Structural Dynamics, Random Vibrations, and Spectral Analysis

- Marine Hydrodynamics Modelling and Ocean Wave Mechanics

- Design of FRP Composite Structures

Teaching

- Structural Reliability Analysis (Level: PhD), [Role: Convenor & Lecturer], {Year: 2014‒2022}

- Advanced Structural Dynamics (Level: PhD), [Role: Convenor & Lecturer], {Year: 2013‒2014}

- Design of Advanced Marine Structures (Level: PhD), [Role: Convenor & Lecturer], {Year: 2014‒2022}

- Finite Element Method (Level: MSc), [Role: Convenor & Lecturer], {Year: 2014‒2016}

- Advanced Engineering Mathematics (Level: MSc), [Role: Convenor & Lecturer], {Year: 2012‒2014}

- Continuum Mechanics (Level: MSc), [Role: Convenor & Lecturer], {Year: 2012‒2017}

- Theory of Elasticity and Plasticity (Level: MSc), [Role: Convenor & Lecturer], {Year: 2009‒2010}

- Analytical Mechanics (Level: MSc), [Role: Convenor & Lecturer], {Year: 2012‒2016}

- Design of Offshore Structures (Level: MSc), [Role: Convenor & Lecturer], {Year: 2012‒2022}

- Design of Coastal Structures (Level: MSc), [Role: Convenor & Lecturer], {Year: 2012‒2022}

- Engineering Probability and Statistics (Level: BSc), [Role: Convenor & Lecturer], {Year: 2010‒2022}

- Engineering Materials (Level: BSc), [Role: Tutor & Lab Instructor], {Year: 2022‒2022}

- Statics (Level: BSc), [Role: Tutor], {Year: 2023‒2023}

- Engineering Mechanics I (Level: BSc), [Role: Lecturer & Tutor], {Year: 2009‒2012}

- Mechanics of Materials (Level: BSc), [Role: Lecturer & Tutor], {Year: 2009‒2012}

- Structural Analysis (Level: BSc), [Role: Lecturer & Tutor], {Year: 2009‒2012}

Fields of Research

  • 400503. Complex civil systems
  • 400507. Fire safety engineering
  • 400509. Structural dynamics
  • 400510. Structural engineering
  • 401501. Marine engineering
  • 401503. Ocean engineering
  • 401504. Ship and platform structures (incl. maritime hydrodynamics)
BSc
Tabriz
2006
MSc
Tabriz
2008
PhD
Tabriz
2012

Current Supervisions

Research TitleSupervisor TypeLevel of StudyCommenced
Impact behaviour of GFRP composite piles for aid-to-navigation structuresAssociate SupervisorDoctoral2023
Project titleDetailsYear
Advance Queensland Industry Research Fellowship (AQIRF) - $620,000 [Total]This 2-year research project entitled “Sustainable and flood-resilient composite aids to navigation structures” has been officially commenced on 30 June 2023. Using advanced composites instead of steel will eliminate expensive infrastructure maintenance activities as well as the marine pollution caused by the corrosion-induced products going into the water. Moreover, since a high proportion of aid structures are constructed in regional and remote areas of Queensland, the lightweight of GFRP composites will be of high benefit during the transport, handling, and installation. In collaboration with Maritime Safety Queensland and Wagners Composite Fibre Technologies, the realization of this project will unlock the potential of GFRP composites for sustainable and flood-resilient marine infrastructures. 2023
UniSQ Research Capacity Building Grant (RCBG) - $15,000This 1-year research project entitled “Analysis of fibre composites for sustainable and climate-resilient navigational aid structures” has been officially commenced on 1 January 2023. The maritime industry is supporting over 4000 jobs and contributing around $1B/yr to the Queensland economy. Supporting this industry, a system of navigational aid structures is employed to ensure safety of vessel movements. Typically made of steel, aid infrastructure is susceptible to corrosion in marine environment and requires regular maintenance costing over $3.7M/yr. Application of fibre-reinforced polymer (FRP) composite for these structures will solve the problem of corrosion and high maintenance cost.2022
DateNameAwarding organisationUnderpinning research
2023Advance Queensland Industry Research Fellow (AQIRF)Queensland Government
2022Among the World’s Top 2% Highly-Cited ScientistsStanford University
2020Among the World’s Top 2% Highly-Cited ScientistsStanford University
2017Country’s Distinguished Young Researcher of the Year in Civil EngineeringIranian Academy of Sciences
2015Researcher of the Year (2nd Place) at the Faculty of Civil EngineeringUniversity of Tabriz
2013Young Researcher of the Year at Polytechnic FacultiesUniversity of Tabriz
2013Young Researcher of the Year at the Faculty of Civil EngineeringUniversity of Tabriz

A Study on the Degree of Bending (DoB) in Two-Planar Tubular DYT-Joints of Offshore Jacket Structures: Geometrical Effects and Fatigue Design Formulation

Ahmadi, Hamid, Karampour, Hassan, Ghorbani, Mahdi and Fard, Hamid. 2023. "A Study on the Degree of Bending (DoB) in Two-Planar Tubular DYT-Joints of Offshore Jacket Structures: Geometrical Effects and Fatigue Design Formulation." ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE2023). Melbourne, Australia 11 - 16 Jun 2023 Australia. https://doi.org/10.1115/OMAE2023-100940

A simplified theoretical prediction of lateral deformation behaviour of structural pipe repair systems

Kiriella, Shanika, Manalo, Allan, Tien, , Cam Minh Tri, Karunasena, Warna, Ahmadi, Hamid, Salah, Ahmad, Dixon, Patrick, Wham, Brad P. and O'Rourke, Thomas D.. 2023. "A simplified theoretical prediction of lateral deformation behaviour of structural pipe repair systems." No-Dig Down Under 2023 Conference. Brisbane, Australia 12 - 14 Sep 2023 Australia.

An Analytical Approach for Thermally Induced Axial Deformation in Rehabilitated Pipelines

Dixon, Patrick G., Salah, Ahmad, Ahmadi, Hamid, Ulrich, Morgan E., Hubler, Mija H., Dashti, Shideh, O’Rourke, Thomas D., Manalo, A. and Wham, Brad P.. 2023. "An Analytical Approach for Thermally Induced Axial Deformation in Rehabilitated Pipelines." Pipelines 2023: Construction and Rehabilitation. San Antonio, TX, United States. 12 - 16 Aug 2023 United States. https://doi.org/10.1061/9780784485026.028

Effects of geometrical parameters on the degree of bending in two-planar tubular DYT-joints of offshore jacket structures

Ahmadi, Hamid and Ghorbani, Mahdi. 2023. "Effects of geometrical parameters on the degree of bending in two-planar tubular DYT-joints of offshore jacket structures." Ocean Systems Engineering. 13 (2), pp. 97-121. https://doi.org/10.12989/ose.2023.13.2.097

Lateral deformation behaviour of structural internal replacement pipe repair systems

Kiriella, Shanika, Manalo, Allan, Tien, Cam Minh Tri, Ahmadi, Hamid, Wham, Brad P., Salah, Ahmad, Tafsirojjaman, T., Karunasena, Warna, Dixon, Patrick and O'Rourke, Thomas D.. 2023. "Lateral deformation behaviour of structural internal replacement pipe repair systems." Composite Structures. 319, p. 117144. https://doi.org/10.1016/j.compstruct.2023.117144

Geometrical effects on the local joint flexibility of three-planar tubular Y-joints in substructures of offshore wind turbines

Ahmadi, Hamid and Akbari Niri, Ata. 2023. "Geometrical effects on the local joint flexibility of three-planar tubular Y-joints in substructures of offshore wind turbines." Ships and Offshore Structures. https://doi.org/10.1080/17445302.2023.2179213

Derivation of the Probability Density Functions for the Local Joint Flexibility Factors in Axially Loaded Two-Planar Tubular DK-Joints of Offshore Structures

Ahmadi, Hamid and Mayeli, Vahid. 2023. "Derivation of the Probability Density Functions for the Local Joint Flexibility Factors in Axially Loaded Two-Planar Tubular DK-Joints of Offshore Structures." Journal of Civil and Environmental Engineering. 53.1 (110), pp. 161-174.

Effects of the legacy pipe ends on the behaviour of pipe-in-pipe repair systems under internal pressure

Tien, C.M.T., Manalo, A., Dixon, P., Tafsirojjaman, T., Karunasena, W., Flood, W.W., Ahmadi, H., Kiriella, S., Salah, A. and Wham, B.P.. 2023. "Effects of the legacy pipe ends on the behaviour of pipe-in-pipe repair systems under internal pressure." Engineering Failure Analysis. 144. https://doi.org/10.1016/j.engfailanal.2022.106957

Effects of floating wave barriers on wave-induced forces exerted to offshore-jacket structure

Osgouei, Arash Dalili, Poursorkhabi, Ramin Vafaei, Hosseini, Hamed, Qader, Diyar N., Maleki, Ahmad and Ahmadi, Hamid. 2022. "Effects of floating wave barriers on wave-induced forces exerted to offshore-jacket structure." Structural Engineering and Mechanics. 83 (1), pp. 53-66. https://doi.org/10.12989/sem.2022.83.1.053

Effects of geometrical parameters on the local joint flexibility (LJF) of three-planar tubular T-joints in offshore structures

Ahmadi, Hamid and Akhtegan, Mohammad. 2022. "Effects of geometrical parameters on the local joint flexibility (LJF) of three-planar tubular T-joints in offshore structures." Ships and Offshore Structures. 17 (7), pp. 1604-1615. https://doi.org/10.1080/17445302.2021.1937794

Numerical study on the ultimate load of offshore two-planar tubular KK-joints at fire-induced elevated temperatures

Azari-Dodaran, Neda and Ahmadi, Hamid. 2022. "Numerical study on the ultimate load of offshore two-planar tubular KK-joints at fire-induced elevated temperatures." Journal of Marine Engineering and Technology. 21 (4), pp. 205-223. https://doi.org/10.1080/20464177.2020.1827488

Fire resistance of collar-plate-reinforced multi-planar tubular KK-joints: experimental and numerical study for the design formulation

Azari-Dodaran, Neda and Ahmadi, Hamid. 2022. "Fire resistance of collar-plate-reinforced multi-planar tubular KK-joints: experimental and numerical study for the design formulation." Ships and Offshore Structures. 17 (6), pp. 1190-1208. https://doi.org/10.1080/17445302.2021.1897233

Experimental and numerical study of the ultimate load for collar-plate-reinforced tubular K-joints at fire-induced elevated temperatures

Azari-Dodaran, Neda, Ahmadi, Hamid, Zhu, Lie and Li, Peiyang. 2022. "Experimental and numerical study of the ultimate load for collar-plate-reinforced tubular K-joints at fire-induced elevated temperatures." Ships and Offshore Structures. 17 (5), pp. 1159-1177. https://doi.org/10.1080/17445302.2021.1897221

SCFs in offshore two-planar tubular TT-joints reinforced with internal ring stiffeners

Ahmadi, Hamid and Imani, Hossein. 2022. "SCFs in offshore two-planar tubular TT-joints reinforced with internal ring stiffeners." Ocean Systems Engineering. 12 (1), pp. 1-22. https://doi.org/10.12989/ose.2022.12.1.001

SCFs in multi-planar tubular TT-joints of offshore jacket structures subjected to out-of plane bending (OPB) loads

Ahmadi, Hamid and Imani, Hossein. 2022. "SCFs in multi-planar tubular TT-joints of offshore jacket structures subjected to out-of plane bending (OPB) loads." Journal of Civil and Environmental Engineering. https://doi.org/10.22034/JCEE.2022.50514.2122

SCF distribution along the weld toe in tubular X-joints reinforced with doubler plates subjected to axial loading: Study of geometrical effects and design formulation

Ahmadi, Hamid and Khavaninzadeh, Mohammad Hasan. 2021. "SCF distribution along the weld toe in tubular X-joints reinforced with doubler plates subjected to axial loading: Study of geometrical effects and design formulation." Journal of Civil and Environmental Engineering. https://doi.org/10.22034/JCEE.2021.48015.2073

Stress concentration analysis of internally ring-stiffened two-planar tubular KK-joints

Ahmadi, Hamid, Alinezhad, Rasoul and Atalo, Adel Alizadeh. 2022. "Stress concentration analysis of internally ring-stiffened two-planar tubular KK-joints." Ships and Offshore Structures. 17 (10), pp. 2203-2217. https://doi.org/10.1080/17445302.2021.1979922

Effects of a floating wave barrier with square cross section on the wave-induced forces exerted to an offshore jacket structure

Osgouei, Arash Dalili, Poursorkhabi, Ramin Vafaei, Maleki, Ahmad and Ahmadi, Hamid. 2021. "Effects of a floating wave barrier with square cross section on the wave-induced forces exerted to an offshore jacket structure." Ocean Systems Engineering. 11 (3), pp. 259-274. https://doi.org/10.12989/ose.2021.11.3.259

Local joint flexibility of multi-planar tubular TT-joints: Study of geometrical effects and the formulation for offshore design practice

Ahmadi, Hamid and Janfeshan, Navid Mohammadpourian. 2021. "Local joint flexibility of multi-planar tubular TT-joints: Study of geometrical effects and the formulation for offshore design practice." Applied Ocean Research. 113, pp. 1-11. https://doi.org/10.1016/j.apor.2021.102758

A numerical study on the ultimate load of offshore two-planar tubular TT-joints reinforced with internal ring stiffeners at fire-induced elevated temperatures

Azari-Dodaran, Neda and Ahmadi, Hamid. 2021. "A numerical study on the ultimate load of offshore two-planar tubular TT-joints reinforced with internal ring stiffeners at fire-induced elevated temperatures." Ocean Engineering. 230, pp. 1-15. https://doi.org/10.1016/j.oceaneng.2021.108797

Geometrical effects on the degree of bending (DoB) of multi-planar tubular KK-joints in jacket substructure of offshore wind turbines

Ahmadi, Hamid and Atalo, Adel Alizadeh. 2021. "Geometrical effects on the degree of bending (DoB) of multi-planar tubular KK-joints in jacket substructure of offshore wind turbines." Applied Ocean Research. 111, pp. 1-14. https://doi.org/10.1016/j.apor.2021.102678

Parametric study and formulation of SCFs in axially loaded multiplanar tubular XT-joints reinforced with internal ring stiffeners

Ahmadi, Hamid and Kouhi, Ahmad. 2021. "Parametric study and formulation of SCFs in axially loaded multiplanar tubular XT-joints reinforced with internal ring stiffeners." Journal of Civil and Environmental Engineering. https://doi.org/10.22034/JCEE.2021.42052.1968

Stress concentration factors in FRP-strengthened steel tubular KT-joints

Hosseini, Alireza Sadat, Zavvar, Esmaeil and Ahmadi, Hamid. 2021. "Stress concentration factors in FRP-strengthened steel tubular KT-joints." Applied Ocean Research. 108, pp. 1-24. https://doi.org/10.1016/j.apor.2021.102525

Probability density functions of the DoB in tubular KT-joints of jacket-type platforms under out-of-plane bending loads

Ahmadi, Hamid, Zavvar, Esmaeil and Mayeli, Vahid. 2021. "Probability density functions of the DoB in tubular KT-joints of jacket-type platforms under out-of-plane bending loads." Journal of Civil and Environmental Engineering. https://doi.org/10.22034/JCEE.2021.40453.1949

Effects of geometrical parameters on the degree of bending (DoB) in multiplanar tubular XT-joints of offshore structures subjected to axial loading

Ahmadi, Hamid, Chamani, Shadi and Kouhi, Ahmad. 2020. "Effects of geometrical parameters on the degree of bending (DoB) in multiplanar tubular XT-joints of offshore structures subjected to axial loading." Applied Ocean Research. 104. https://doi.org/10.1016/j.apor.2020.102381

Local Buckling Analysis of Cold‑Formed Steel Webs with Rectangular Openings

Osgouei, Amir Jameei, Hosseinzadeh, Yousef and Ahmadi, Hamid. 2020. "Local Buckling Analysis of Cold‑Formed Steel Webs with Rectangular Openings." Iranian Journal of Science and Technology: Transactions of Civil Engineering. 44 (Suppl 1), pp. 67-78. https://doi.org/10.1007/s40996-020-00451-4

Local buckling analysis of cold-formed steel webs with stiffened rectangular openings

Osgouei, Amir Jameei, Hosseinzadeh, Yousef and Ahmadi, Hamid. 2020. "Local buckling analysis of cold-formed steel webs with stiffened rectangular openings." Journal of Constructional Steel Research. 167, pp. 1-16. https://doi.org/10.1016/j.jcsr.2019.105824

Stress concentration factors of multi-planar tubular XT-joints subjected to out-of-plane bending moments

Ahmadi, Hamid and Kouhi, Ahmad. 2020. "Stress concentration factors of multi-planar tubular XT-joints subjected to out-of-plane bending moments." Applied Ocean Research. 96, pp. 1-11. https://doi.org/10.1016/j.apor.2020.102058

Degree of bending (DoB) in offshore tubular KT-joints under the axial, in-plane bending (IPB), and out-of-plane bending (OPB) loads

Ahmadi, Hamid and Zavvar, Esmaeil. 2020. "Degree of bending (DoB) in offshore tubular KT-joints under the axial, in-plane bending (IPB), and out-of-plane bending (OPB) loads." Applied Ocean Research. 95, pp. 1-19. https://doi.org/10.1016/j.apor.2019.102015

Static behavior of offshore two-planar tubular KT-joints under axial loading at fire-induced elevated temperatures

Azari-Dodaran, Neda and Ahmadi, Hamid. 2019. "Static behavior of offshore two-planar tubular KT-joints under axial loading at fire-induced elevated temperatures." Journal of Ocean Engineering and Science. 4 (4), pp. 352-372. https://doi.org/10.1016/j.joes.2019.05.009

Structural behavior of right-angle two-planar tubular TT-joints subjected to axial loadings at fire-induced elevated temperatures

Azari-Dodaran, Neda and Ahmadi, Hamid. 2019. "Structural behavior of right-angle two-planar tubular TT-joints subjected to axial loadings at fire-induced elevated temperatures." Fire Safety Journal. 108, pp. 1-15. https://doi.org/10.1016/j.firesaf.2019.102849

A Probability Distribution Model for the Degree of Bending In Tubular KT-Joints of Offshore Jacket-Type Platforms Subjected To IPB Moment Loadings

Ahmadi, Hamid, Mayeli, Vahid and Zavvar, Esmaeil. 2019. "A Probability Distribution Model for the Degree of Bending In Tubular KT-Joints of Offshore Jacket-Type Platforms Subjected To IPB Moment Loadings." International Journal of Coastal and Offshore Engineering. 3 (2), pp. 11-29. https://doi.org/10.29252/IJCOE.3.2.11

Probabilistic analysis of the DoB in axially-loaded tubular KT-joints of offshore structures

Ahmadi, Hamid. 2019. "Probabilistic analysis of the DoB in axially-loaded tubular KT-joints of offshore structures." Applied Ocean Research. 87, pp. 64-80. https://doi.org/10.1016/j.apor.2019.03.018

Effects of geometrical parameters on the degree of bending (DoB) in two-planar tubular DT-joints of offshore jacket structures subjected to axial and bending loads

Ahmadi, Hamid and Niaki, Masoud Amini. 2019. "Effects of geometrical parameters on the degree of bending (DoB) in two-planar tubular DT-joints of offshore jacket structures subjected to axial and bending loads." Marine Structures. 64, pp. 229-245. https://doi.org/10.1016/j.marstruc.2018.11.008

Development of a probability distribution model for the LJF factors in offshore two-planar tubular DK-joints subjected to OPB moment loading

Ahmadi, Hamid and Mayeli, Vahid. 2019. "Development of a probability distribution model for the LJF factors in offshore two-planar tubular DK-joints subjected to OPB moment loading." Marine Structures. 63, pp. 196-214. https://doi.org/10.1016/j.marstruc.2018.09.009

Probabilistic analysis of the local joint flexibility in two-planar tubular DK-joints of offshore jacket structures under in-plane bending loads

Ahmadi, Hamid and Mayeli, Vahid. 2018. "Probabilistic analysis of the local joint flexibility in two-planar tubular DK-joints of offshore jacket structures under in-plane bending loads." Applied Ocean Research. 81, pp. 126-140. https://doi.org/10.1016/j.apor.2018.10.011

Static strength of axially loaded tubular KT-joints at elevated temperatures: Study of geometrical effects and parametric formulation

Dodaran, Neda Azari, Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2018. "Static strength of axially loaded tubular KT-joints at elevated temperatures: Study of geometrical effects and parametric formulation." Marine Structures. 61, pp. 282-308. https://doi.org/10.1016/j.marstruc.2018.06.009

Parametric study on structural behavior of tubular K-joints under axial loading at fire-induced elevated temperatures

Dodaran, Neda Azari, Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2018. "Parametric study on structural behavior of tubular K-joints under axial loading at fire-induced elevated temperatures." Thin-Walled Structures. 130, pp. 467-486. https://doi.org/10.1016/j.tws.2018.06.014

Development of a Probability Distribution Model for SCFs in Uniplanar Tubular KT-Joints of Offshore Structures under IPB Moment Loading

Ahmadi, Hamid and Benam, Mir Amin Mousavi Nezhad. 2017. "Development of a Probability Distribution Model for SCFs in Uniplanar Tubular KT-Joints of Offshore Structures under IPB Moment Loading." International Journal of Coastal and Offshore Engineering. 1 (3), pp. 1-18.

Static capacity of tubular X-joints reinforced with collar plate subjected to brace compression

Nassiraei, Hossein, Zhu, Lie, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2017. "Static capacity of tubular X-joints reinforced with collar plate subjected to brace compression." Thin-Walled Structures. 119, pp. 256-265. https://doi.org/10.1016/j.tws.2017.06.012

Static strength of doubler plate reinforced tubular T/Y-joints under in-plane bending load

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali, Ahmadi, Hamid and Zhu, Lie. 2017. "Static strength of doubler plate reinforced tubular T/Y-joints under in-plane bending load." Journal of Constructional Steel Research. 136, pp. 49-64. https://doi.org/10.1016/j.jcsr.2017.05.009

Investigation on the Effect of Geometrical and Geotechnical Parameters on Elongated Offshore Piles Using Fuzzy Inference Systems

Aminfar, Ali, Mojtahedi, Alireza, Ahmadi, Hamid and Aminfar, Mohammad Hossein. 2017. "Investigation on the Effect of Geometrical and Geotechnical Parameters on Elongated Offshore Piles Using Fuzzy Inference Systems." China Ocean Engineering. 31 (3), pp. 378-388. https://doi.org/10.1007/s13344-017-0044-z

Local joint flexibility of two-planar tubular DK-joints in OWTs subjected to axial loading: Parametric study of geometrical effects and design formulation

Ahmadi, Hamid and Nejad, Ali Ziaei. 2017. "Local joint flexibility of two-planar tubular DK-joints in OWTs subjected to axial loading: Parametric study of geometrical effects and design formulation." Ocean Engineering. 136, pp. 1-10. https://doi.org/10.1016/j.oceaneng.2017.03.011

Geometrical effects on the local joint flexibility of two-planar tubular DK-joints in jacket substructure of offshore wind turbines under OPB loading

Ahmadi, Hamid and Nejad, Ali Ziaei. 2017. "Geometrical effects on the local joint flexibility of two-planar tubular DK-joints in jacket substructure of offshore wind turbines under OPB loading." Thin-Walled Structures. 114 (5), pp. 122-133. https://doi.org/10.1016/j.tws.2017.02.001

Probabilistic analysis of stress concentration factors in unstiffened gap tubular KT-joints of jacket structures under the out-of-plane bending moment loads

Ahmadi, Hamid and Benam, Mir Amin Mousavi Nezhad. 2017. "Probabilistic analysis of stress concentration factors in unstiffened gap tubular KT-joints of jacket structures under the out-of-plane bending moment loads." Advances in Structural Engineering: an international journal. 20 (4), pp. 595-615. https://doi.org/10.1177/1369433216658487

A study on the Local Joint Flexibility (LJF) of two-planar tubular DK-joints in jacket structures under in-plane bending loads

Ahmadi, Hamid and Nejad, Ali Ziaei. 2017. "A study on the Local Joint Flexibility (LJF) of two-planar tubular DK-joints in jacket structures under in-plane bending loads." Applied Ocean Research. 64, pp. 1-14. https://doi.org/10.1016/j.apor.2017.02.002

Cyclic Behavior of Cold-Formed Steel Frames with Strap Bracing

Hosseinzadeh, Y., Moslehifar, A. and Ahmadi, H.. 2017. "Cyclic Behavior of Cold-Formed Steel Frames with Strap Bracing." Asian Journal of Civil Engineering. 18 (2), pp. 150-161.

Static performance of doubler plate reinforced tubular T/Y-joints subjected to brace tension

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2016. "Static performance of doubler plate reinforced tubular T/Y-joints subjected to brace tension." Thin-Walled Structures. 108, pp. 138-152. https://doi.org/10.1016/j.tws.2016.08.012

Static strength of doubler plate reinforced tubular T/Y-joints subjected to brace compressive loading: Study of geometrical effects and parametric formulation

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2016. "Static strength of doubler plate reinforced tubular T/Y-joints subjected to brace compressive loading: Study of geometrical effects and parametric formulation." Thin-Walled Structures. 107, pp. 231-247. https://doi.org/10.1016/j.tws.2016.06.009

The effect of multi-planarity on the SCFs in offshore tubular KT-joints subjected to in-plane and out-of-plane bending loads

Ahmadi, Hamid and Zavvar, Esmaeil. 2016. "The effect of multi-planarity on the SCFs in offshore tubular KT-joints subjected to in-plane and out-of-plane bending loads." Thin-Walled Structures. 106, pp. 148-165. https://doi.org/10.1016/j.tws.2016.04.020

Structural behavior of tubular T/Y-joints with collar plate under static in-plane bending

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2016. "Structural behavior of tubular T/Y-joints with collar plate under static in-plane bending." Journal of Constructional Steel Research. 123, pp. 121-134. https://doi.org/10.1016/j.jcsr.2016.04.029

Parametric study of geometrical effects on the degree of bending (DoB) in offshore tubular K-joints under out-of-plane bending loads

Ahmadi, Hamid and Asoodeh, Shadi. 2016. "Parametric study of geometrical effects on the degree of bending (DoB) in offshore tubular K-joints under out-of-plane bending loads." Applied Ocean Research. 58, pp. 1-10. https://doi.org/10.1016/j.apor.2016.03.004

Static strength of offshore tubular T/Y-joints reinforced with collar plate subjected to tensile brace loading

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2016. "Static strength of offshore tubular T/Y-joints reinforced with collar plate subjected to tensile brace loading." Thin-Walled Structures. 103, pp. 141-156. https://doi.org/10.1016/j.tws.2016.02.010

Parametric Study on the Effects of Pile Inclination Angle on the Response of Batter Piles in Offshore Jacket Platforms

Aminfar, Ali, Ahmadi, Hamid and Aminfar, Mohammad Hossein. 2016. "Parametric Study on the Effects of Pile Inclination Angle on the Response of Batter Piles in Offshore Jacket Platforms." Journal of Marine Science and Application. 15, pp. 193-200. https://doi.org/10.1007/s11804-016-1355-9

A probability distribution model for SCFs in internally ring-stiffened tubular KT-joints of offshore structures subjected to out-of-plane bending loads

Ahmadi, Hamid. 2016. "A probability distribution model for SCFs in internally ring-stiffened tubular KT-joints of offshore structures subjected to out-of-plane bending loads." Ocean Engineering. 116, pp. 184-199. https://doi.org/10.1016/j.oceaneng.2016.02.037

Comparing the geodetical and geotechnical methods in investigating the deformation of earthfill dams; A case study of Mahabad Earthfill Dam, Iran

Aminfar, M. H., Rastbud, A., Ahmadi, H. and Naseri, A.. 2016. "Comparing the geodetical and geotechnical methods in investigating the deformation of earthfill dams; A case study of Mahabad Earthfill Dam, Iran." Journal of Engineering Science and Technology. 11 (4), pp. 619-637.

Stress concentration factors in uniplanar tubular KT-joints of jacket structures subjected to in-plane bending loads

Ahmadi, Hamid and Nejad, Ali Ziyaei. 2016. "Stress concentration factors in uniplanar tubular KT-joints of jacket structures subjected to in-plane bending loads." International Journal of Maritime Technology. 5, pp. 27-39.

Static strength of collar plate reinforced tubular T/Y-joints under brace compressive loading

Nassiraei, Hossein, Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2016. "Static strength of collar plate reinforced tubular T/Y-joints under brace compressive loading." Journal of Constructional Steel Research. 119, pp. 39-49. https://doi.org/10.1016/j.jcsr.2015.12.011

Seismic responses of an offshore jacket-type platform incorporated with tuned liquid dampers

Lotfollahi-Yaghin, Mohammad Ali, Ahmadi, Hamid and Tafakhor, Hassan. 2016. "Seismic responses of an offshore jacket-type platform incorporated with tuned liquid dampers." Advances in Structural Engineering: an international journal. 19 (2), pp. 227-238. https://doi.org/10.1177/1369433215624340

Probabilistic analysis of stress concentration factors in tubular KT-joints reinforced with internal ring stiffeners under in-plane bending loads

Ahmadi, Hamid, Yeganeh, Ali, Mohammadi, Amir Hossain and Zavvar, Esmaeil. 2016. "Probabilistic analysis of stress concentration factors in tubular KT-joints reinforced with internal ring stiffeners under in-plane bending loads." Thin-Walled Structures. 99, pp. 58-75. https://doi.org/10.1016/j.tws.2015.11.010

Probabilistic analysis of stress intensity factor (SIF) and degree of bending (DoB) in axially loaded tubular K-joints of offshore structures

Ahmadi, Hamid and Ghaffari, Amirreza. 2015. "Probabilistic analysis of stress intensity factor (SIF) and degree of bending (DoB) in axially loaded tubular K-joints of offshore structures." Latin American Journal of Solids and Structures. 12 (11), pp. 2025-2044. https://doi.org/10.1590/1679-78251698

Probability density functions of SCFs in internally ring-stiffened tubular KT-joints of offshore structures subjected to axial loading

Ahmadi, Hamid, Mohammadi, A. and Yeganeh, Ali. 2015. "Probability density functions of SCFs in internally ring-stiffened tubular KT-joints of offshore structures subjected to axial loading." Thin-Walled Structures. 94, pp. 485-499. https://doi.org/10.1016/j.tws.2015.05.012

Degree of bending (DoB) in tubular K-joints of offshore structures subjected to in-plane bending (IPB) loads: Study of geometrical effects and parametric formulation

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Asoodeh, Shadi. 2015. "Degree of bending (DoB) in tubular K-joints of offshore structures subjected to in-plane bending (IPB) loads: Study of geometrical effects and parametric formulation." Ocean Engineering. 102, pp. 105-116. https://doi.org/10.1016/j.oceaneng.2015.04.050

Stress concentration due to in-plane bending (IPB) loads in ring-stiffened tubular KT-joints of offshore structures: Parametric study and design formulation

Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2015. "Stress concentration due to in-plane bending (IPB) loads in ring-stiffened tubular KT-joints of offshore structures: Parametric study and design formulation." Applied Ocean Research. 51, pp. 54-66. https://doi.org/10.1016/j.apor.2015.02.009

Probabilistic Assessment of Degree of Bending in Tubular X-Joints of Offshore Structures Subjected to Bending Loads

Ahmadi, Hamid and Ghaffari, Amirreza. 2015. "Probabilistic Assessment of Degree of Bending in Tubular X-Joints of Offshore Structures Subjected to Bending Loads." Advances in Civil Engineering. 2015, pp. 1-13. https://doi.org/10.1155/2015/518450

Stress concentration factors induced by out-of-plane bending loads in ring-stiffened tubular KT-joints of jacket structures

Ahmadi, Hamid and Zavvar, Esmaeil. 2015. "Stress concentration factors induced by out-of-plane bending loads in ring-stiffened tubular KT-joints of jacket structures." Thin-Walled Structures. 91, pp. 82-95. https://doi.org/10.1016/j.tws.2015.02.011

Chord-side SCF distribution of central brace in internally ring-stiffened tubular KT-joints: A geometrically parametric study

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Yong-Bo, Shao. 2013. "Chord-side SCF distribution of central brace in internally ring-stiffened tubular KT-joints: A geometrically parametric study." Thin-Walled Structures. 70, pp. 93-105. https://doi.org/10.1016/j.tws.2013.04.011

Parametric study and formulation of outer-brace geometric stress concentration factors in internally ring-stiffened tubular KT-joints of offshore structures

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali, Yong-Bo, Shao and Aminfar, Mohammad H.. 2012. "Parametric study and formulation of outer-brace geometric stress concentration factors in internally ring-stiffened tubular KT-joints of offshore structures." Applied Ocean Research. 38, pp. 74-91. https://doi.org/10.1016/j.apor.2012.07.004

The development of fatigue design formulas for the outer brace SCFs in offshore three-planar tubular KT-joints

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Aminfar, Mohammad H.. 2012. "The development of fatigue design formulas for the outer brace SCFs in offshore three-planar tubular KT-joints." Thin-Walled Structures. 58, pp. 67-78. https://doi.org/10.1016/j.tws.2012.04.011

Slamming induced dynamic response of a floating structure

Lotfollahi-Yaghin, Mohammad Ali, Rastgar, Mehdi and Ahmadi, Hamid. 2012. "Slamming induced dynamic response of a floating structure." Journal of Marine Science and Technology (Taiwan). 20 (2), pp. 201-209. https://doi.org/10.51400/2709-6998.1839

A probability distribution model for stress concentration factors in multi-planar tubular DKT-joints of steel offshore structures

Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2012. "A probability distribution model for stress concentration factors in multi-planar tubular DKT-joints of steel offshore structures." Applied Ocean Research. 34, pp. 21-32. https://doi.org/10.1016/j.apor.2011.11.002

Geometrically parametric study of central brace SCFs in offshore three-planar tubular KT-joints

Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2012. "Geometrically parametric study of central brace SCFs in offshore three-planar tubular KT-joints." Journal of Constructional Steel Research. 71, pp. 149-161. https://doi.org/10.1016/j.jcsr.2011.10.024

Effect of SCFs on S-N based fatigue reliability of multi-planar tubular DKT-joints of offshore jacket-type structures

Ahmadi, Hamid and Lotfollahi-Yaghin, Mohammad Ali. 2013. "Effect of SCFs on S-N based fatigue reliability of multi-planar tubular DKT-joints of offshore jacket-type structures." Ships and Offshore Structures. 8 (1), pp. 55-72. https://doi.org/10.1080/17445302.2011.627750

Geometrical Parametric Study and Development of Design Formulae for the SCF Distribution Along the Weld Toe in Multi-Planar CHS DKT-Connections of Offshore Structures

Lotfollahi-Yaghin, Mohammad Ali, Ahmadi, Hamid and Shahverdi, Sajad. 2011. "Geometrical Parametric Study and Development of Design Formulae for the SCF Distribution Along the Weld Toe in Multi-Planar CHS DKT-Connections of Offshore Structures ." ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Rotterdam, The Netherlands 19 - 24 Jun 2011 American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2011-49121

Effect of stress concentration factors on the structural integrity assessment of multi-planar offshore tubular DKT-joints based on the fracture mechanics fatigue reliability approach

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Aminfar, Mohammad H.. 2011. "Effect of stress concentration factors on the structural integrity assessment of multi-planar offshore tubular DKT-joints based on the fracture mechanics fatigue reliability approach." Ocean Engineering. 38 (17-18), pp. 1883-1893. https://doi.org/10.1016/j.oceaneng.2011.08.004

Distribution of weld toe stress concentration factors on the central brace in two-planar CHS DKT-connections of steel offshore structures

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Aminfar, Mohammad H.. 2011. "Distribution of weld toe stress concentration factors on the central brace in two-planar CHS DKT-connections of steel offshore structures." Thin-Walled Structures. 49 (10), pp. 1225-1236. https://doi.org/10.1016/j.tws.2011.06.001

Geometrical effect on SCF distribution in uni-planar tubular DKT-joints under axial loads

Ahmadi, Hamid, Lotfollahi-Yaghin, Mohammad Ali and Aminfar, Mohammad H.. 2011. "Geometrical effect on SCF distribution in uni-planar tubular DKT-joints under axial loads." Journal of Constructional Steel Research. 67 (8), pp. 1282-1291. https://doi.org/10.1016/j.jcsr.2011.03.011

Geometric stress distribution along the weld toe of the outer brace in two-planar tubular DKT-joints: Parametric study and deriving the SCF design equations

Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2011. "Geometric stress distribution along the weld toe of the outer brace in two-planar tubular DKT-joints: Parametric study and deriving the SCF design equations." Marine Structures. 24 (3), pp. 239-260. https://doi.org/10.1016/j.marstruc.2011.02.005

Effect of geometrical parameters on SCF distribution along the weld toe of tubular KT-joints under balanced axial loads

Lotfollahi-Yaghin, Mohammad Ali and Ahmadi, Hamid. 2010. "Effect of geometrical parameters on SCF distribution along the weld toe of tubular KT-joints under balanced axial loads." International Journal of Fatigue. 32 (4), pp. 703-719. https://doi.org/10.1016/j.ijfatigue.2009.10.008

Dynamic behaviour of damaged reinforced concrete beams and application of white noise analysis to crack detection

Lotfollahi-Yaghin, M.A., Shahinpar, R. and Ahmadi, H.. 2009. "Dynamic behaviour of damaged reinforced concrete beams and application of white noise analysis to crack detection." Journal of the South African Institution of Civil Engineering. 51 (2), pp. 2-10.